RU2739844C2 - Wireless charging system for charging a charged electric power source of a heating device for aerosol-generating articles - Google Patents

Abstract

FIELD: electrical equipment.

SUBSTANCE: wireless charging system for charging a charged electric power source of a heating device for aerosol-generating articles comprises: charging device (3), comprising a flat transmitting coil (30), wherein the charging device is configured to supply alternating current (I) to the flat transmitting coil (30); wirelessly charged electric power source (4) of heating device (2) for aerosol generating articles, comprising electric energy accumulator (41) and tubular receiving coil (40), receiving coil (40) has longitudinal axis (42) and is configured to be placed in a charging position with respect to the flat transmitting coil (30), wherein in charging position longitudinal axis (42) of tubular receiving coil (40) passes in plane parallel to flat transmitting coil (30), and in radial direction—relative to flat transmitting coil (30), and wherein tubular receiving coil (40) is arranged to overlap at least part of flat transmitting coil (30).

EFFECT: technical result consists in improvement of charging system reliability.

20 cl, 8 dwg

Description

The present invention relates to a wireless charging system for charging a chargeable electrical power source of a heating device for aerosol generating products.

Conventional smoking articles known to date, such as cigarettes, deliver flavor and aroma to the user through a combustion process. The mass of combustible material, primarily tobacco, is burned and an adjacent portion of the material is pyrolyzed by the supplied heat drawn through the material, with typical combustion temperatures above 800 ° C during puffing. During heating, there is an ineffective oxidation of the combustible material and the formation of a variety of distillation and pyrolysis products. When these products are drawn through the body of the smoking article towards the user's mouth, they cool and condense to form an aerosol or vapor that delivers the flavor and aroma associated with smoking to the user.

An alternative to more conventional smoking articles includes articles in which the combustible material alone does not directly provide flavoring agents to the aerosol inhaled by the smoker. In these aerosol generating articles, a combustible heating element, usually carbon-containing in nature, is burned to heat air as the latter is drawn over the heating element and passes through a zone containing the heat-activated elements that release the aromatized aerosol.

Yet another alternative to more conventional smoking articles includes a tobacco-containing solid substrate that forms an aerosol. The aerosol-forming substrate is inserted into the cavity of the heating device casing and heated to produce the aerosol and create the desired aroma.

Heating the aerosol-forming substrate can be achieved in a variety of ways. For example, in accordance with one embodiment, the aerosol-forming substrate, generally cylindrical in shape, may comprise a groove in one of its end surfaces that extends axially into the body of the aerosol-forming substrate. The heating device comprises an electric heater comprising a plate extending into the cavity, and after inserting the aerosol-forming substrate into the cavity, the plate enters the groove of the aerosol-forming substrate. The plate is subsequently electrically heated, whereby heat is transferred from the plate to the aerosol-forming substrate to form an aerosol.

According to another embodiment, heating of the aerosol forming substrate can be achieved by inductively heating the aerosol forming substrate. The aerosol-forming substrate may comprise a magnetically permeable, electrically conductive pantograph located in thermal proximity to the tobacco-containing aerosol-forming substrate. For example, the pantograph may be located in an aerosol-forming substrate in the form of particles, stripes, etc. The pantograph of the tobacco-containing substrate is exposed to an alternating magnetic field generated by an induction source, as a result of which an alternating magnetic field is induced in the pantograph. For example, the induction source can be a coil that can be positioned in the casing of the heating device to surround a cavity to receive the aerosol forming substrate. The pantograph is heated primarily by hysteresis losses and eddy currents, and heat is transferred from the pantograph to the aerosol-forming substrate to form an aerosol.

Regardless of the mechanism for heating the aerosol-forming substrate, it will be appreciated that electrical energy must be supplied from an electrical storage device with a heating device (such as a rechargeable or non-rechargeable battery) to a plate or coil to heat the aerosol-forming substrate. In the case of a rechargeable battery, the heating device usually consists of a physical connector to accommodate the physical connector of the charger to charge (or recharge) the battery. The charger can be connected to the mains. After the physical connection, the charger connector and the heater connector are in conductive electrical contact with each other, whereby the battery being charged can be charged. Either the charger, the heater, or both, contains suitable electronic circuits to control the charging process. Alternatively, it is generally possible to remove the chargeable battery from the heater, charge the chargeable battery in a charging station separate from the heater, and then reinsert the charged battery into the heater. Charging a rechargeable battery in a charging station is usually carried out in the same way as described above (in other words, through a physical and electrically conductive contact).

The charger and heater are usually specially implemented for the planned charging of the battery. In other words, if the user needs to charge the battery, the charger must be available at the location where charging will take place. Additionally, as described above, a conductive electrical contact must be established between the charger and the battery, such conductive electrical contact is prone to failure due to insufficient contact or due to short circuits or other harmful effects on the conductive electrical contact.

Thus, there is a need for a simple and reliable system for charging a chargeable power source of a heater for aerosol generating articles.

In accordance with one aspect of the invention, there is provided a wireless charging system for charging a chargeable electrical power source of a heater for aerosol generating articles, wherein the wireless charging system comprises: a charger comprising a flat transmission coil, the charger being configured to supply alternating current on a flat transmitting coil to generate an alternating magnetic field; - a wirelessly charged source of electrical energy for a heating device for aerosol generating products, wherein the wirelessly charged electrical energy source comprises an electrical energy storage device and a tubular receiving coil connected to the electrical energy storage device, the tubular receiving coil having a longitudinal axis and is configured to be placed in the position charging with respect to the flat transmitting coil, wherein in the charging position, the longitudinal axis of the receiving tubular coil extends in a plane parallel to the flat transmitting coil and also radially relative to the flat transmitting coil, and wherein in the charging position, the receiving tubular coil is positioned to overlap at least part of a flat transmitting coil to allow the tubular receiving coil to be pierced by a magnetic field.

The term “flat coil” refers to a coil located in a flat (flat, ie not curved) plane. The turns of such a flat coil are wound one around the other in the indicated plane around the center of the flat coil. The charger containing the flat transmitting coil may, for example, be a standard commercially available charger that can be implemented in accordance with a wireless charging standard such as, for example, "Qi" or "AirFuel". Such standard commercially available chargers contain one or more flat transfer coils and are readily available on the market. They are distributed in different places around the world and are provided, for example, in conference rooms or convention centers, hotels, etc., where they allow users to wirelessly charge energy sources of electronic devices such as smartphones, tablets or other electronic devices that are capable of being charged by such standard wireless charging devices.

To enable this kind of wireless charging, electronic devices contain a flat receive coil, often the same size as the flat transmitting coil of a charger. In the charging position, the flat receiving coil of the electronic device is positioned such that the center of the flat receiving coil and the center of the flat transmitting coil are aligned such that the flat receiving coil and the flat transmitting coil are congruent. Additionally, in the charging position, the flat transmitting coil and the flat receiving coil are located at a small distance from each other, for example, at a distance in the range of 5 mm (millimeters) to 40 mm.

When an alternating current is applied to the flat transmitting coil, an alternating magnetic field is generated that permeates the flat receiving coil, thereby inducing an alternating current in the flat receiving coil. The flat receiving coil is connected to an energy storage device (such as a rechargeable battery) through a suitable circuit capable of converting the alternating current induced in the flat receiving coil into direct current, which is then used to charge the energy storage device. The charging process is controlled by suitable control electronics, which are located in the charger, but additional control electronics can also be located in the electronic device to be charged. In this way, controlled wireless charging of an electronic device can be performed.

Since the heating housing of the aerosol generating articles is usually tubular (to accommodate the generally cylindrical aerosol forming substrate), it is practically impossible to accommodate a flat receiving coil of suitable size in the housing of such a heating device for aerosol generating articles without making the size and shape of the heating device. impractical.

According to the wireless charging system of the present invention, the take-up coil is thus a tubular take-up coil (not a flat take-up coil) and has a longitudinal axis. The tubular take-up coil can be conveniently located in the tubular casing of the heater for aerosol generating articles without making the size and shape of the heater impractical.

When the tubular take-up coil is located in the charging position, the longitudinal axis of the tubular take-up reel extends both in a plane that is parallel to the flat transmitting coil and in the radial direction of the flat transmitting coil (charger). The term "radial direction of the flat transmitting coil" means a direction from the center of the flat transmitting coil to the circumference of the flat transmitting coil. In other words: the longitudinal axis of the receiving tubular coil is located in a plane that is parallel to the plane defined by the flat transmitting coil and located at a distance from the plane that is defined by the flat transmitting coil, while the longitudinal axis of the tubular receiving coil is located in the said plane parallel to the plane , which is defined by a flat transmitting coil in the radial direction of the flat transmitting coil.

Additionally, the tubular receive coil is positioned to overlap at least a portion of the flat transmitting coil. This overlap is necessary in order to allow the tubular receiving coil during operation to be effectively penetrated by the magnetic field generated by the alternating current flowing through the planar transmitting coil. This alternating magnetic field permeates the tubular receiving coil and induces an alternating current in the receiving coil.

The tubular take-up coil is connected to an electrical energy storage, for example a rechargeable battery, which can be charged several times through a suitable well known circuit. To charge the battery, an alternating current induced in the receiving coil is converted to direct current by the above well-known circuit, and this direct current is then used to charge the battery.

The tubular take-up coil in one embodiment may comprise one single take-up coil portion (one continuous coil), while in other embodiments, the take-up coil may comprise more than one take-up coil portion. A specific embodiment in which the take-up tubular coil comprises two take-up coil portions will be further described below.

Typically, it is possible to implement a wirelessly rechargeable electrical energy source of the heating device for aerosol generating articles as an assembly that can be detached (e.g., pulled) from the heating device for charging and which can be reinserted into the heating device after it was charged.

However, it is considered preferable to arrange the source of electrical energy within the heating device for aerosol generating articles, which does not allow separation of the energy source from the heating device. The energy source is then charged by the energy source located inside the heating device.

With the wireless charging system according to the present invention, it is possible to maintain a practical and convenient size and shape of the heating device for aerosol generating products, while on the other hand, the energy storage of such a heating device can be conveniently charged wirelessly, for example using standard commercially available devices. wireless charging that can be implemented in accordance with a wireless charging standard such as "Qi" or "AirFuel" and which are available in many places. It is no longer necessary to physically connect the charger and heating device through a pluggable electrical connection to establish a conductive electrical contact for charging, nor is it necessary to carry appropriate charging equipment with you. Instead, charging the battery can be conveniently done wirelessly.

According to one aspect of the wireless charging system of the present invention, the tubular receiving coil comprises a first receiving coil portion and a second receiving coil portion that are spaced apart from each other in the direction of the longitudinal axis of the receiving coil by a predetermined distance. The first part of the take-up reel has a first winding direction, the second part of the take-up reel having a second winding direction opposite to the first winding direction. The predetermined distance by which the first part of the receiving coil and the second part of the receiving coil are separated from each other is such that in the charging position the first part of the receiving coil overlaps the first part of the transmitting coil in the radial direction, while the second part of the receive coil overlaps the second part. transmitting coil in the radial direction. The first transmission coil portion and the second transmission coil portion are located oppositely to the center of the flat transmission coil.

For simplicity and by way of example only, assume that the shape of the flat transmitting coil is square (with rounded corners), in other words, the flat transmitting coil contains two pairs of oppositely spaced straight transmitter coil portions (corresponding to opposite sides of the square). Let's take a closer look at one of these pairs of oppositely located parts of the transmitting coil. One part of the transmission coil of such a pair is the aforementioned first part of the transmission coil, while the corresponding oppositely located part of the transmission coil is the second part of the transmission coil. Obviously, an alternating current flowing through the first part of the transmission coil in the first direction flows through the corresponding second part of the transmission coil in a second direction which is opposite to the first direction. As a consequence, the direction of the alternating magnetic field generated by the alternating current flowing through the first part of the transmission coil is opposite to the direction of the alternating magnetic field generated by the same alternating current flowing through the second part of the transmission coil.

The tubular take-up coil can be cylindrical (for example, it has a circular cross-section) and contains two parts of the cylindrical take-up coil having the same number of turns: the first part of the take-up coil and the second part of the take-up coil. The first part of the receiving coil is positioned to overlap the first part of the transmitting coil, while the second part of the receiving coil is positioned to overlap the (oppositely located) second part of the transmitting coil. Since the first and second take-up coil portions together form a take-up coil, the downstream end of the first take-up coil part is connected to the upstream end of the second take-up coil part. Let us further assume that the first and second parts of the receiving coil both completely overlap the first and second parts of the transmitting coil in the radial direction. The magnetic field penetrating the first part of the receiving coil and the magnetic field penetrating the second part of the receiving coil have the same strength, but they are oppositely directed. As a consequence, the alternating current induced in the first part of the receiving coil and the alternating current induced in the second part of the receiving coil have the same strength, however they are oppositely directed, so that the currents induced in the first and second part of the receiving coil cancel each other out, and the total amperage is zero.

However, since according to this aspect of the charging system of the invention, the winding direction of the second receiving coil part is opposite to the winding direction of the first receiving coil part, the alternating current induced in the first receiving coil part and the alternating current induced in the second receiving coil part add together. Additionally, the flux of the alternating magnetic field of the two transmitting coil parts (the first and second transmitting coil parts) and, respectively, the sum of the alternating currents induced in the first and second receiving coil parts are used to charge the battery. While generally a receive coil containing only one single receive coil portion is also usable (in this case, a separate receive coil portion only overlaps one transmit coil portion), the above described dual receive coil embodiment further enhances the efficiency of the system. wireless charging according to the present invention.

According to another aspect of the wireless charging system according to the present invention, a tubular receiving coil is wound around a tubular body that is made of at least one layer of magnetically conductive and electrically non-conductive sheeting, and wherein an electrical energy storage device is disposed in the interior of the tubular body.

An advantage of this aspect is that the roll bar protects the electrical storage device (and any related circuitry) that is located in the inner space of the roll bar from the magnetic flux generated by the transmitter coil. Accordingly, the energy storage (eg, battery) and circuitry are protected from any negative influence such magnetic flux might have on the energy storage and associated circuitry. The sheet material has the advantage that a carcass can be easily made by wrapping several layers of sheet material around one another. Although the energy storage device and the associated circuit are protected from magnetic flux, the magnetic flux at the same time penetrates the magnetic conductive tubular frame and penetrates the receiving coil, which is wound around the tubular frame, thus inducing an alternating current in the receiving coil.

In accordance with another aspect of the wireless charging system of the present invention, the magnetically conductive and electrically non-conductive sheeting is ferrite. Ferrite is a preferred material having the aforementioned properties, and, for example, three such layers of ferrite sheet material can be used to form a skeleton, although this number is only mentioned by way of example and is in no way limiting.

Another aspect of a wireless charging system according to the present invention relates to an embodiment comprising first and second receive coil portions that are positioned to overlap first and second opposed transmitter coil portions, respectively, wherein the first and second receive coil portions have first and second winding direction (see description above). In this aspect, the roll bar comprises three distinct, discrete roll bar portions: a first end tube portion, a second tube end portion, and an intermediate roll bar portion located between the first and second tube end portions. The first tubular end, the intermediate tubular, and the second tubular end are located along the longitudinal axis of the tubular. The first tubular end and the intermediate tubular, as well as the intermediate tubular and the second tubular end, are separated from each other by an annular gap of a predetermined width that is small enough to prevent magnetic flux from entering the interior of the tubular. A first take-up reel portion having a first winding direction is wound around the first end of the tubular, while a second take-up reel portion having a second winding direction opposite to the first winding direction is wound around the second end of the tubular.

Dividing the roll bar into three separate, discrete roll bar portions prevents any generated flux at the first frame end portion from possibly overlapping with the oppositely directed magnetic flux generated at the second frame end portion, or vice versa, as this would reduce overall efficiency. The specified annular gap width is determined so that the following two conditions are met. On the one hand, the reluctance of the annular (air) gap between the first end of the tubular and the intermediate portion of the tubular, as well as the reluctance of the annular (air) gap between the intermediate of the tubular and the second end of the tubular, should be much higher. than the reluctance of the magnetically conductive sheeting (which has low reluctance) such that the magnetic flux in any insulated tubular portion does not enter an adjacent split tubular portion due to the reluctance of the annular (air) gap. In this way, the detached parts of the roll bar are essentially separated from each other with respect to magnetic flux (thus avoiding unwanted interference of magnetic fluxes). On the other hand, the predetermined gap width is small enough to prevent the alternating magnetic field generated by the transmitting coil from penetrating into the interior of the roll bar (containing three separate discrete roll bar parts) in order to protect the energy store and related circuitry from any negative influence. , which such a magnetic field can exert on the energy storage device and related circuitry.

To summarize, in practice, the three separate, discrete sections of the roll bar prevent the magnetic field generated by the transmitter coil from entering the inner space of the roll bar where the battery and associated circuitry are located, while at the same time preventing the negative effects of magnetic flux interference from occurring.

In accordance with yet another aspect of the wireless charging system of the present invention, each of the first tubular end portion and the second tubular end portion comprises two annular rims located at the ends of the first and second tubular ends, respectively, and a recessed portion located between the two ring rims. The first part of the take-up coil is located in a recessed part of the first end of the tubular part, while the second part of the take-up coil is located in the recessed part of the second end of the tubular part.

This aspect has the advantage that the first take-up reel part and the second take-up reel part (having opposite winding directions) are positioned and installed in the recessed part of the first and second end portions of the tubular, respectively, being held in this position on the first and second end portions of the tubular the first and second annular rims. This also has the advantage that the positions of the first and second parts of the receiving coil relative to each other (and thus the distance at which they are located relative to each other) are reliably maintained.

According to another aspect of the wireless charging system of the present invention, the length of the first end of the tubular portion is less than or equal to the width of the first portion of the transmission coil, the length of the second end of the tubular portion being less than or equal to the width of the second end of the transmission coil.

This aspect is advantageous with regard to the positioning of the first and second receiver coil portions relative to the first and second transmitter coil portions. For a better understanding, suppose again, as an example, that a flat transmission coil is square (with rounded corners). Each side of the square of the flat transmission coil is formed by a plurality of turns that are parallel and the opposite sides of the square are also parallel to each other. Accordingly, each side of the square has a width that depends on the actual number of turns, and since usually the opposite sides of the square have the same number of turns, such opposite sides of the square have the same width. As mentioned above, the first and second parts of the tubular receiving coil (having opposite winding directions) must overlap the first and second parts of the transmitting coil, respectively, to allow the magnetic flux of the alternating magnetic field generated by the first and second parts of the transmitting coil to penetrate the first and second parts. a tubular receiving coil to induce an alternating current in the first and second parts of the receiving coil (which can be converted into direct current by suitable circuitry to charge the electrical energy storage device as described above). Obviously, for maximum efficiency, as much of the magnetic flux as possible should penetrate the first and second parts of the tubular receiving coil, respectively.

Let us further assume that the dimensions of the square transmitting coil are known (since they can be matched to a wireless charging standard such as "Qi" or "AirFuel", which is also described above). In particular, the distance between the midpoint of the width of one side of the square (which is the midpoint of the distance between the loop farthest from the center and the loop closest to the center) and the midpoint of the width of the opposite side of the square is known. The longitudinal axis of the tubular receiving coil, which corresponds to the coinciding longitudinal axes of the first and second parts of the tubular receiving coil, as well as the longitudinal axes of the first and second end portions of the tubular frame, runs in the direction of the widths of the opposite sides of the square and in a plane parallel to the flat transmitting coil (which, again, described above).

In the case where the width of the first tubular end portion is equal to the width of the first transmission coil portion (in the above embodiment, equal to the width of one side of the square) and the width of the second tubular end portion is equal to the width of the second transmission coil portion (in the above embodiment, equal to the width of the opposite side of the square ), the first and second parts of the receiving coil should be accurately positioned relative to the first and second parts of the transmitting coil so that the greatest possible magnetic flux generated by the first and second parts of the transmitting coil penetrates into the first and second end parts of the tubular frame and penetrates the first and second parts of the receiving coils.

In the case where the width of the first tubular end portion is less than the width of the first transmission coil portion (in the above embodiment, less than the width of one side of the square) and the width of the second tubular end portion is also less than the width of the second transmission coil portion (in the above-described embodiment, less than the width of the opposite side of the square ), the first and second receiver coil portions allow greater freedom in precise positioning relative to the first and second transmitter coil portions while still allowing the maximum possible magnetic flux to pass into the first and second end portions of the tubular. For example, the first end of the roll bar can be positioned slightly off-center towards the outermost end of the first transmission coil part (i.e. towards the outermost end of one side of the square) and at the same time the second the end portion of the tubular frame may be slightly offset from the center towards the end of the second portion of the transmitting coil closest to the center (i.e. towards the end of the opposite side of the square closest to the center). However, since the length of each of the first and second tubular ends is less than the widths of the first and second transmission coil portions, respectively, the total length of the respective end portions of the tubular still extends within the width of the corresponding side of the square. Accordingly, the maximum possible magnetic flux is still able to penetrate the first and second end portions of the tubular and to penetrate the corresponding first and second portions of the receiver coil.

According to another aspect of the wireless charging system according to the present invention, the wireless charging system comprises a heating device for aerosol generating products, comprising a tubular casing in which a heater for heating the substrate forming an aerosol is disposed, and a wirelessly charged electrical power source comprising a tubular receiving coil ... The wirelessly charged power source is located in the waterproof part of the heater tube.

This aspect has the advantage that, on the one hand, the wirelessly chargeable electrical power source is disposed in the tubular casing of the heating device for aerosol generating products, so that wireless charging of the electrical power source requires only positioning the heating device relative to the charger so that the chargeable wirelessly, the source of electrical energy was located in the charging position. There is no need to separate the wirelessly charged electrical power source from the heating device. Additionally, positioning the wirelessly charged electrical power supply in the waterproof part of the tubular casing of the heating device is advantageous because the wirelessly charging electrical power supply cannot be damaged even if the heating device is exposed to water, as may happen when cleaning the heating device (for example while cleaning the cavity for containing the substrate forming the aerosol).

Another general aspect of the invention relates to a method for wirelessly charging a chargeable electrical power source of a heating device for aerosol generating articles. The method includes providing a charger comprising a flat transmitting coil, the charger being configured to supply alternating current to the flat transmitting coil to generate an alternating magnetic field; - providing a wirelessly charged source of electrical energy to a heating device for aerosol generating products, wherein the wirelessly charged electrical energy source comprises an electrical energy storage device and a tubular receiving coil connected to an electrical energy storage device, the tubular receiving coil having a longitudinal axis, - placing a wirelessly charged source electrical energy in the charging position relative to the flat transmitting coil, wherein in the charging position, the longitudinal axis of the receiving tubular coil extends in a plane parallel to the flat transmitting coil and in the radial direction of the flat transmitting coil, and also in the charging position the receiving tubular coil is arranged so as to overlap at least a portion of the flat transmitting coil to allow the tubular receiving coil to be pierced by an alternating magnetic field, supplying an alternating current to the flat transmitting coil for the purpose of generating injecting an alternating magnetic field penetrating the receiving tubular coil and inducing an alternating charging current in the receiving tubular coil; and charging a chargeable power source using an alternating charging current induced in the receiving tubular coil.

The advantages of this method are the same as those described above for the wireless charging system of the present invention. Thus, they will not be described again here.

According to one aspect of the method according to the present invention, the step of providing a wirelessly chargeable electrical power source includes providing an electrical power source having a tubular receiving coil that includes a first receiving coil portion and a second receiving coil portion that are spaced apart in the direction of the longitudinal axis of the receiving coil at a given distance. The first part of the take-up reel has a first winding direction, the second part of the take-up reel having a second winding direction opposite to the first winding direction. The step of placing the tubular receive coil in the charging position includes - placing the first part of the receiving coil so that it overlaps the first part of the transmitting coil in the radial direction and - placing the second part of the receiving coil so that it overlaps the second part of the transmitting coil in the radial direction, with the first a transmitting coil part and a second transmitting coil part are opposed to the center of the flat transmitting coil.

According to another aspect of the method according to the present invention, the step of providing a wirelessly chargeable electrical power source includes providing a wirelessly chargeable electrical power source in which a receiving coil is wound around a roll bar made of at least one layer of magnetically conductive and electrically non-conductive sheet material, the chargeable source electrical energy is placed in the inner space of the tubular frame.

In accordance with yet another aspect of the method according to the present invention, the step of providing a wirelessly rechargeable electrical power source further comprises providing a wirelessly rechargeable electrical power source, wherein the tubular comprises three separate discrete tubular portions: a first tubular end portion, a second tubular end portion. a frame and an intermediate tubular portion located between the first and second end portions of the tubular. The first tubular end, the intermediate tubular, and the second tubular end are located along the longitudinal axis of the tubular. The first tubular end and the intermediate tubular, as well as the intermediate tubular and the second end of the tubular, are separated from each other by an annular gap of a predetermined width to prevent magnetic flux from entering the interior of the tubular. A first take-up reel portion having a first winding direction is wound around the first end of the tubular, while a second take-up reel portion having a second winding direction opposite to the first winding direction is wound around the second end of the tubular.

In accordance with yet another aspect of the method of the present invention, the step of providing a wirelessly rechargeable electrical power source includes providing a wirelessly rechargeable electrical power source, wherein each of the first end tubular portion and the second end tubular portion comprises two annular rims disposed at the ends the corresponding first and second end portions of the tubular, and a recessed portion located between the two annular rims. The first part of the take-up coil is located in a recessed part of the first end of the tubular part, while the second part of the take-up coil is located in the recessed part of the second end of the tubular part.

The advantages of different embodiments of the method according to the present invention correspond to those of the corresponding embodiment of the wireless charging system according to the present invention and thus will not be described again here.

Another general aspect of the invention relates to a wirelessly rechargeable heating device for aerosol generating articles, comprising: a tubular casing comprising a cavity for receiving an aerosol-forming substrate, a heater disposed in the tubular casing, the heater being configured to heat the substrate forming an aerosol. aerosol placed inside the cavity is a wirelessly charged source of electrical energy for supplying electrical energy to the heater, wherein the wirelessly charged electrical energy source is located in a tubular casing and contains an electrical energy storage device and a tubular receiving coil connected to an electrical energy storage device, the tubular receiving coil has a longitudinal axis and is configured to be placed in the charging position relative to the flat transmitting coil of the charger so that in the charging position the longitudinal axis of the tubular receiving coil runs in a plane parallel to n flat transmission coil, in a radial direction with respect to the flat transmission coil, and such that the tubular reception coil overlaps at least a portion of the flat transmission coil.

Such a wireless charging device for aerosol generating products is advantageous over prior art heating devices for aerosol generating products for reasons detailed above for the wireless charging system of the present invention. Thus, these benefits will not be described again here.

In one aspect of a wirelessly chargeable heating device according to the present invention, the tubular casing includes a waterproof portion in which a wirelessly chargeable electrical power source is disposed.

In accordance with yet another aspect of the wirelessly chargeable heating device of the present invention, the tubular receive coil comprises a first receive coil portion and a second receive coil portion that are spaced apart in the direction of the longitudinal axis of the receive coil by a predetermined distance. The first part of the take-up reel has a first winding direction, the second part of the take-up reel having a second winding direction opposite to the first winding direction.

In yet another aspect of a wirelessly chargeable heating device according to the present invention, a tubular take-up coil is wound around the tubular and made of at least one layer of magnetically conductive and electrically non-conductive sheeting. The chargeable source of electrical energy is located in the interior of the tubular frame.

In yet another aspect of the wirelessly chargeable heating device of the present invention, the magnetically conductive and electrically non-conductive sheeting is ferrite.

In accordance with yet another aspect of a wirelessly rechargeable heating device according to the present invention, the roll bar comprises three separate, discrete roll bar portions; a first tubular end portion, a second tubular end portion, and an intermediate tubular portion located between the first and second tubular end portions. The first tubular end, the intermediate tubular, and the second tubular end are located along the longitudinal axis of the tubular. The first tubular end and the intermediate tubular, as well as the intermediate tubular and the second end of the tubular, are separated from each other by an annular gap of a predetermined width to prevent magnetic flux from entering the interior of the tubular. In addition, a first take-up reel portion having a first winding direction is wound around the first tubular end portion, while a second take-up reel portion having a second winding direction opposite to the first winding direction is wound around the second tubular end portion.

In accordance with yet another aspect of the wirelessly chargeable heating device of the present invention, each of the first tubular end portion and the second tubular end portion comprises two annular rims located at the ends of the respective first and second tubular ends and a recessed portion located between two annular rims. The first part of the take-up coil is located in a recessed part of the first end of the tubular part, while the second part of the take-up coil is located in the recessed part of the second end of the tubular part.

Additional advantageous aspects and embodiments will become apparent from the following description of embodiments of the invention in conjunction with drawings in which:

in fig. 1 is a schematic illustration of the magnetic flux density lines of force generated by a flat transmitting coil penetrating two parts of the receiving coil (only one winding of the transmitting coil and each part of the receiving coil is shown);

in fig. 2 depicts a first embodiment of key components of a wireless charging system according to the present invention, comprising a wirelessly chargeable electrical power source having two opposite winding receiving coil portions and a charger with a square transmitting coil;

in fig. 3 depicts the wirelessly charged power source shown in FIG. 2, enlarged;

in fig. 4 illustrates an electrical energy storage device for the wirelessly charged power source shown in FIG. 2;

in fig. 5 shows the energy storage device shown in FIG. 4, with first and second end portions of a ferrite sheet material wrapped around respective opposite ends of the power store shown in FIG. 2;

in fig. 6 shows the energy storage device shown in FIG. 5 with two ferrite sheet tubular ends but with the addition of ferrite sheet metal annular rims disposed at both ends of each tubular end portion;

in fig. 7 depicts a second embodiment of key components of a wireless charging system according to the present invention, similar to the embodiment shown in FIG. 2, but with a flat transmission coil having a circular shape; and

in fig. 8 depicts a third embodiment of a wireless charging system according to the present invention, which further comprises a heating device for aerosol generating products, comprising a tubular casing in which a heater for heating an aerosol forming substrate is disposed, and in which a wirelessly charged power source is disposed in a waterproof portion casing.

FIG. one shows a schematic diagram of the magnetic flux lines (represented by the magnetic flux density B) generated by the alternating current I flowing through the planar transmitting coil 30. Two tubular receiving coil portions: a first receiving coil portion 400 and a second receiving coil portion 401 are also shown in FIG. 1, only one winding of the transmitting coil 30 and each of the first and second portions 400, 401 of the tubular receiving coil are shown for simplicity. As can be seen, the common longitudinal axis 42 of the tubular receive coil comprising the first and second receive coil portions 400, 401 extends in a plane parallel to the flat transmitting coil 30. Or, in other words, the winding (s) of the first and second receive coil portions 400, 401 of the coil extends in a plane perpendicular to the flat transmitting coil 30. Considering that the exploded view of FIG. 1, the somewhat spaced apart first and second receiver coil portions 400, 401 are located above the respective portions of the transmitter coil 30, as will be explained in more detail below, magnetic flux (represented by the magnetic flux density lines B) permeates the first and second receiver coil portions 400, 401 mainly as schematically shown in FIG. one.

Since the magnetic flux (represented by the lines of force of the magnetic flux density B) is an alternating magnetic flux (it is generated by an alternating current I flowing through the transmitting coil 30), an alternating current I _{1 is} induced in the first part 400 of the receiving coil, while an alternating current I ₂ is induced in the second part 401 of the receive coil. Due to the magnetic flux (represented by the magnetic flux density B) flowing through the receiving coil portions 400, 401 in opposite directions, the alternating current I ₁ induced in the first receiving coil portion 400 has a direction opposite to that of the alternating current I ₂ induced in the second parts 401 of the receiving coil, assuming that the winding directions of the first and second parts 400, 401 of the receiving coil are the same, whereby the induced alternating currents I ₁ and I ₂ cancel each other (due to their opposite directions).

FIG. 2 depicts a first embodiment of key components of a wireless charging system according to the present invention, comprising a charger 3 having a flat, square-shaped transmitting coil 30 and a wirelessly chargeable power source 4. FIG. 3 depicts a wirelessly rechargeable power source 4 shown in FIG. 2, enlarged. The wirelessly chargeable power source 4 comprises a receiver coil 40 comprising the aforementioned first and second receiver coil portions 400, 401. As seen in FIG. 2, the first receive coil portion 400 is positioned over the first portion 300 of the transmitting coil 30, while the second receive coil portion 401 is positioned above the second portion 301 of the transmitting coil 30. However, unlike what is shown in FIG. 1, the first and second receiving coil portions 400, 401 have opposite winding directions 402, 403, so that it is obvious that the magnetic flux penetrating the first and second receiving coil portions 400, 401 induces alternating currents in the first and second receiving coil portions 400, 401 coils that are mutually added, taking into account the principles explained above from FIG. one.

The wirelessly rechargeable power source 4 also comprises a power store 41 (see also FIG. 4) which can, for example, be implemented as a rechargeable battery. The two connecting wires 404, 405 (see also FIG. 4) of the take-up coil 40 are connected via a well known circuit (eg, containing rectifier circuit) to a rechargeable battery to charge the battery with a constant current.

The wirelessly rechargeable energy source 4 further comprises a roll bar containing three separate, isolated roll bar portions made of ferrite sheet material, namely, the first roll bar end portion 440, the second roll bar end portion 441 and the intermediate roll bar portion 442, which are located along a common longitudinal axis 443 of the roll bar. The intermediate tubular portion 442 is located between the first and second end portions of the tubular 440, 441. The first tubular end portion 440, the second tubular end portion 441 and the intermediate tubular portion 442 together form a substantially continuous tubular frame with an electrical energy store 41 containing a battery and well-known electronic circuitry disposed in the interior of the substantially continuous tubular frame. In fact, the roll bar is not completely continuous because it has annular gaps 444, 445 (usually air gaps) located between the discrete subparts 440, 441, 442 of the roll bar so that the discrete subparts 440, 441, 442 are separated from each other. from each other with annular gaps 444, 445.

Typically, annular gaps 444, 445 have a width 450, 451, which is small enough to prevent magnetic flux from entering the interior of the roll bar formed by the three roll bar portions 440, 441, 442 housing the battery and well-known electronics. Accordingly, the roll cage portions 440, 441, 442 (serving as magnetic flux concentrators) protect the battery and circuitry from the negative effects of magnetic flux penetrating the inner space of the roll cage while separating the roll cage portions 440, 441, 442 with annular air gaps 444, 445 prevents the occurrence of magnetic flux interference in the first and second end portions 440, 441 of the roll bar (i.e., any magnetic flux entering the first part 440 of the roll bar practically does not interfere with the magnetic flux entering the second part 441 of the roll bar and vice versa, or at least such interaction is significantly reduced; and the annular gaps 444, 445 cause a large reluctance compared to the reluctance of the corresponding portions 440, 441, 442 of the roll bar).

Each of the first and second end portions 440, 441 of the roll bar further comprises two annular rims 446, 447 (see FIG. 6) that are located at the ends of the first and second end portions 440, 441 of the roll bar, respectively. A first take-up coil portion 400 is disposed in a recessed portion 448 of a first tubular end portion 440 that is formed between two annular rims 446, a second take-up reel portion 401 (with opposite winding direction) located in a recessed portion 449 of a second tubular end portion 441, which is formed between two annular rims 447.

The above-described wirelessly chargeable power supply 4 may, for example, be manufactured by the method described below with reference to FIG. 4, figs. 5 and FIG. 6.

FIG. 4 an electrical energy store 41 containing well-known electronic circuitry (including, for example, a rectifier circuit for converting AC to DC) is shown in conjunction with connecting wires 404, 405 (see also FIG. 3).

As best seen in FIG. 5, the cylindrical portions 4400, 4410 are created by wrapping several layers of ferrite sheet material, for example three layers, around the respective ends of the energy storage 41.

Further, as best seen in FIG. 6, annular rims 446, 447 are created by wrapping several layers, for example three more layers of ferrite sheet material having a width of 4460, 4470, around cylindrical portions 4400, 4410 to form a first tubular end portion 440 containing annular rims 446 and a recess 448 located between these rims 446, as well as the second end portion 441 of the roll bar containing the annular rims 447 and a recess 449 located between these rims 447.

In a next step (not shown), the intermediate roll cage portion 442 is created by wrapping several layers of ferrite sheet material around the energy storage 41 so that after the wrapping step is completed, the roll cage containing three separate, isolated roll cage portions 440, 441, 442 separated by annular gaps 444, 445, is complete. A take-up spool 40 is then made, comprising first and second take-up coil portions 400, 401, by first wrapping the turns of the first take-up coil portion 400 in a recess 448 around the cylindrical portion 4400 of the first end portion 440 of the roll bar, then changing the wrap direction and wrapping the turns of the second take-up coil portion 401 coils in the opposite direction in a recess 449 around the cylindrical portion 4410 of the second end portion 441 of the roll bar. Thus, the take-up spool 40 is a series connection of the first and second take-up coil portions 400, 401, however, the first and second take-up coil portions have opposite winding directions. The two ends 4000 and 4010 of the take-up coil 40 (see FIG. 3) are then connected to the connecting wires 404, 405 leading to the energy storage 41 (see FIG. 5). Thereafter, the wirelessly chargeable power supply 4 shown in FIG. 3 and FIG. 4 is complete.

As also shown in FIG. 2 and FIG. 3 , for charging the electrical energy storage 41 of the wirelessly charged power source 4, the wirelessly charged power source 4 is positioned such that the longitudinal axis 42 of the receiving coil, which coincides with the longitudinal axis 443 of the roll bar, is positioned such that it runs in a plane parallel to the flat transmission coil 30 charger 3 system 1 wireless charging. Additionally, the wirelessly charged power source 4 is positioned such that the first end portion 440 of the roll bar and the first portion 400 of the receiving coil located thereon are located above the first portion 300 of the flat transmission coil 30, while the second end portion 441 of the roll bar and the second portion The take-up coil 401 (having an opposite winding direction) is disposed above the second portion 301 of the flat transmitting coil 30. Also, the longitudinal axis 42 of the take-up coil 40 containing the first and second take-up coil portions 400, 401 extends in the radial direction of the flat transmitting coil 30.

The first transmission coil portion 300 has a width of 60, while the second transmission coil portion 301 has a width of 61, which are equal in the illustrated embodiment. There is a distance 63 between the middle of the width 60 of the first transmission coil portion 300 and the middle of the width 61 of the second transmission coil portion 301. There is also a distance 43 between the middle of the length 50 of the first end roll portion 440 and the middle of the length 51 of the second end portion 441 of the roll bar. Ideally, these distances 43 and 63 are equal.

Additionally, the length 50 of the first end portion of the roll bar 440 is less than or equal to the width 60 of the first transmitter coil portion 300. Likewise, the length 51 of the second end portion 441 of the roll bar is less than or equal to the width 61 of the second portion 301 of the transmitting coil.

In the case where the lengths 50, 51 of the first and second end portions of the roll bar 440, 441 are equal to the widths 60, 61 of the first and second portions 300, 301 of the transmitting coil, the first and second end portions 440, 441 of the roll bar are located above the first and second portions 300 , 301 transmitting coils so that they are completely aligned. The intermediate frame 442 is 52 in length.

In the case where the lengths 50, 51 of the first and second end portions 440, 441 of the roll bar are less than the widths 60, 61 of the first and second portions 300, 301 of the transmitting coil, greater freedom is allowed in placing the end portions of the roll bar above the first and second parts of the transmitting coil. coils, since the first and second end portions of the roll bar 440, 441 may be slightly offset radially relative to the first and second portions 300, 301 of the transfer coil, while the first and second end portions 440, 441 of the roll bar will still be above corresponding parts 300, 301 of the transmitting coil to the full length 50, 51.

When an alternating current I (see FIG. 1) flows through the transmitter coil 30, the alternating magnetic flux is generated in the main manner represented by the magnetic flux density lines B shown in FIG. 1. This magnetic flux penetrates into the first and second end portions 440, 441 of the roll bar, and since they are made of a magnetically conductive material, the magnetic flux is directed to the first and second end portions 440, 441 of the roll bar. The magnetic flux directed into the first and second end portions 440, 441 of the roll bar induces alternating currents I ₁ , I ₂ in the first and second portions 400, 401 of the receiving coil, however, in contrast to what is shown in FIG. 1, the directions of the alternating currents I _1, I _{2 are the} same, so that they are mutually added (due to the opposite winding directions of the first and second receiving coil portions 400, 401) in the receiving coil 40. Any magnetic flux is prevented from entering the interior of the three portions 440 , 441, 442 of the roll bar, so that the energy store 41 comprising the well known circuit, which is located in the interior of the three roll bar portions 440, 441, 442, is not influenced by the magnetic flux. At the same time, the magnetic flux entering the first end portion 440 of the tubular does not interfere with the magnetic flux entering the second end of the tubular 441, and vice versa, since the annular air gaps 444 and 445 cause a large magnetic resistance relative to the portions of the tubular (at least any possible interference, if any, is greatly attenuated).

The sum of the alternating currents I ₁ , I ₂ induced in the first and second parts 400, 401 of the receiving coil flows in the direction of the electric power storage 41, is converted into direct current by a well-known circuit (for example, containing a rectifier) and the direct current is then used to charge the battery of the energy storage 41.

FIG. 7 depicts a second embodiment of key components of a wireless charging device according to the present invention, which is similar to the embodiment shown in FIG. 2. A key difference compared to the embodiment shown in FIG. 2 is that in the embodiment shown in FIG. 7, the flat transmission coil 130 has a generally circular shape instead of a square shape as in the case of the embodiment shown in FIG. 2. The remainder of this embodiment is described with reference to FIG. 2-6 above.

FIG. 8 depicts a third embodiment of a wireless charging system according to the present invention, but a charger with a transmitter coil is not shown in FIG. 8. This embodiment of the wireless charging system comprises a heating device 2 for aerosol generating products comprising a tubular casing comprising first and second casing parts 20, 21 in which a heater for heating the substrate forming an aerosol and a wirelessly charged energy source 4 are located (see Fig. 3). The wirelessly charged power source 4 is located in the first casing portion 20, which can be implemented as a waterproof casing portion. The heater can be located in the second casing part 21, which can also be realized as a waterproof casing part.

For example, an aerosol generating article (not shown) with or without a filter and containing a cylindrical aerosol forming substrate (containing a pantograph) can be inserted into a cavity 210 located at the free end of the second housing portion 21 to induce heat the substrate to the formation of an aerosol inhaled by the user.

In the case where the heating device 2 is implemented as an induction heating device comprising a heating coil disposed in the second casing part 210 so as to at least partially surround the cavity 210, it is possible to arrange all the components of the device in a waterproof casing 20, 21, whereby the casing can be easily cleaned with water, which is very convenient.

Claims (20)

1. A wireless charging system (1) for charging a chargeable source (4) of electrical energy of a heating device (2) for products generating aerosol, wherein the wireless charging system comprises: a charger (3) containing a flat transmitting coil (30), when the charger is configured to supply an alternating current (I) to the flat transmission coil (30) in order to generate an alternating magnetic field (B); wirelessly charged source (4) of electrical energy of the heating device (2) for products that generate aerosol, while the wirelessly charged source (4) of electrical energy contains an energy storage (41) and a tubular receiving coil (40) connected to the storage (41 ) electricity, and the tubular receiving coil (40; 400, 401) has a longitudinal axis (42) and is configured to be placed in the charging position relative to the flat transmitting coil (30), and in the charging position, the longitudinal axis (42) of the tubular receiving coil (40 ) passes in a plane parallel to the flat transmitting coil (30), and also in the radial direction of the flat transmitting coil (30), and in the charging position, the tubular receiving coil (40) is arranged so as to overlap at least part (300, 301) flat transmitting coil (30) to allow the tubular receiving coil (40) to be penetrated by the magnetic field (B). 2. Wireless charging system according to claim 1, characterized in that the tubular receiving coil (40) comprises a first part (400) of a receiving coil and a second part (401) of a receiving coil, which are spaced apart from each other in the direction of the longitudinal axis (42) of the receiving coil by a predetermined distance (43), wherein the first part (400) of the take-up reel has a first winding direction (402), and the second part (401) of the take-up reel has a second winding direction (403) opposite to the first winding direction (402), and wherein the predetermined distance (43) by which the first part (400) of the receiving coil and the second part (401) of the receiving coil are spaced apart from each other is such that in the charging position the first part (400) of the receiving coil overlaps the first part (300) of the transmitting coils in the radial direction, while the second part (401) of the receiving coil overlaps the second part (301) of the transmitting coil in the radial direction, while the first part (300) of the transmitting coil and the second part (301) of the transmitting her coils are oppositely located relative to the center of the flat transmitting coil (30). 3. Wireless charging system according to any one of the preceding claims, characterized in that the tubular receiving coil (40; 400, 401) is wound around the tubular frame (440, 441, 442), which is made of at least one layer of magnetically conductive and electrically non-conductive sheet material, and wherein the energy storage (41) is located in the interior of the tubular frame (440, 441, 442). 4. The wireless charging system of claim 3, wherein the magnetically permeable and electrically non-conductive sheeting is ferrite. 5. Wireless charging system according to claim 2 and any one of paragraphs. 3 or 4, characterized in that the roll cage contains three separate isolated parts (440, 441, 442) of the roll bar: the first end part (440) of the roll bar, the second end part (441) of the roll bar and the intermediate part (442) of the roll bar located between the first and second end portions (440, 441) of the roll bar, the first end portion (440) of the roll bar, the intermediate portion (442) of the roll bar and the second end portion (441) of the roll bar are located along the longitudinal axis (443) of the roll bar frame, and the first end part (440) of the tubular frame and the intermediate part (442) of the tubular frame, as well as the intermediate part (442) of the tubular frame and the second end part (441) of the tubular frame are separated from each other by an annular gap (444, 445) of a given width (450, 451), which is small enough to prevent the penetration of magnetic flux into the inner space of the roll bar, and additionally the first hour A take-up reel part (400) having a first winding direction (402) is wound around the first end part (440) of the tubular frame, while a second take-up reel part (401) having a second winding direction (403) opposite to the first direction (402) winding, wound around the second end portion (441) of the tubular frame. 6. A wireless charging system according to claim 5, characterized in that each of the first end portion (440) of the roll bar and the second end portion (441) of the roll bar contains two annular rims (446, 447) located at the ends of the corresponding first and second end portions (440, 441) of the roll bar, and a recessed portion (448, 449) located between the two annular rims (446, 447), and wherein the first portion (400) of the take-up coil is located in the recessed portion (448) of the first end portion ( 440) of the roll bar, while the second portion (401) of the take-up reel is located in the recessed portion (449) of the second end portion (441) of the roll bar. 7. Wireless charging system according to any one of paragraphs. 5 or 6, characterized in that the length (50) of the first end part (440) of the roll bar is less than or equal to the width (60) of the first part (300) of the transmitting coil and the length (51) of the second end part (441) of the roll bar is less or is equal to the width (61) of the second part (301) of the transmission coil. 8. Wireless charging system according to any of the preceding claims, characterized in that it comprises a heating device (2) for products generating aerosol, comprising a tubular casing (20, 21), in which a heater for heating the substrate forming an aerosol is located, and wirelessly a source (4) of electrical energy containing a tubular receiving coil (40), and the wirelessly charged source (4) of electrical energy is located in the waterproof part (20) of the tubular casing (20, 21) of the heating device (2). 9. A method for wireless charging of a chargeable source (4) of electrical energy of a heating device (2) for products generating aerosol, the method comprising providing a charger (3) comprising a flat transmission coil (30), the charger (3) being configured with the possibility of supplying an alternating current (I) to the flat transmission coil (30) in order to generate an alternating magnetic field (B); - provision of a wirelessly charged source (4) of electrical energy of the heating device (2) for products generating aerosol, while the wirelessly charged source (4) of electrical energy comprises an energy storage (41) and a tubular receiving coil (40) connected to the storage (41) electricity, and the tubular receiving coil (40) has a longitudinal axis (42), - placement of the wirelessly charged source (4) of electrical energy in the charging position relative to the flat transmission coil (30), and in the charging position the longitudinal axis (42) of the tubular receiving coil (40) runs in a plane parallel to the flat transmitting coil (30) and in the radial direction relative to the flat transmitting coil (30), and furthermore, in the charging position, the tubular receiving coil (40) is arranged so as to overlap at least least part (300, 301) of the flat transmitting coil (30) to allow the tubular receiving coil (40) to be penetrated by an alternating magnetic field (B), - supplying an alternating current (I) to a flat transmitting coil (30) in order to generate an alternating magnetic field (B) penetrating the tubular receiving coil (40) and inducing an alternating charging current in the tubular the receiving coil (40), and - charging the chargeable power source using an alternating charging current induced in the tubular receiving coil (40). 10. The method of claim 9, wherein the step of providing a wirelessly chargeable electrical power source (4) comprises providing an electrical power source (4) having a tubular receive coil (40) that comprises a first receive coil portion (400) and the second part (401) of the take-up reel, which are spaced apart from each other in the direction of the longitudinal axis (42) of the take-up reel (40) by a predetermined distance (43), wherein the first part (400) of the take-up reel has a first winding direction (402), and the second take-up reel portion (401) has a second winding direction (403) opposite to the first winding direction (402), and wherein the step of placing the tubular take-up reel (40) in the charging position comprises placing the first take-up reel portion (400) so that it overlaps the first part of the transmitting coil (300) in the radial direction, and placing the second part (401) of the receiving coil so that it overlaps the second part (301) of the transmitting coil in the radial direction direction, the first part (300) of the transmitting coil and the second part (301) of the transmitting coil are oppositely located relative to the center of the flat transmitting coil (30). 11. A method according to claim 9 or 10, characterized in that the step of providing a wirelessly rechargeable electrical power source comprises providing a wirelessly rechargeable electrical power source (4) in which a receiving coil (40; 400, 401) is wound around a roll bar ( 440, 441, 442), which is made of at least one layer of magnetically conductive and electrically non-conductive sheet material, and wherein the chargeable source of electrical energy is placed in the inner space of the tubular frame (440, 441, 442). 12. The method according to claim 11, wherein the step of providing a wirelessly rechargeable electrical power source (4) further comprises providing a wirelessly rechargeable electrical power source (4), wherein the roll bar comprises three separate discrete parts (440, 441, 442) of the roll bar: the first end portion (440) of the roll bar, the second end portion (441) of the roll bar and the intermediate portion (442) of the roll bar located between the first and second end portions (440, 441) of the roll bar, the first end portion (440) of the roll bar, the intermediate portion (442) of the roll bar and the second end portion (441) of the roll bar are located along the longitudinal axis (443) of the roll bar, and wherein the first end portion (440) of the roll bar and the intermediate portion (442) of the roll bar as well as the intermediate portion (442) of the roll bar and the second end portion (441) of the roll bar are separated from each other another with an annular gap (444, 445) of a predetermined width (450, 451) to prevent the penetration of magnetic flux into the inner space of the tubular frame (440, 441, 442), and additionally the first part (400) of the receiving coil having the first direction (402) winding is wound around the first end part (440) of the roll bar, while the second part (401) of the take-up reel, having a second winding direction (403) opposite to the first winding direction (402), is wound around the second end part (441) of the roll bar. 13. The method of claim 12, wherein the step of providing a wirelessly rechargeable electrical power source comprises providing a wirelessly rechargeable electrical power source (4), wherein each of the first end portion (440) of the roll bar and the second end portion (441 ) of the tubular frame contains two annular rims (446, 447) located at the ends of the corresponding first and second end portions (440, 441) of the tubular frame, and a recessed part (448, 449) located between two annular rims (446, 447), and wherein the first take-up coil portion (400) is positioned in a recessed portion (446) of the first end portion (440) of the roll bar, while the second take-up spool portion (401) is located in the recessed portion (448) of the second end portion (449) of the roll bar. 14. A wirelessly chargeable heating device (2) for products generating aerosol, comprising: a tubular casing (20, 21) containing a cavity (210) for containing a substrate that forms an aerosol, a heater located in a tubular casing (20, 21), wherein the heater is configured to heat the aerosol-forming substrate placed inside the cavity (210), a wirelessly charged source (4) of electrical energy for supplying electrical energy to the heater, and the wirelessly charged source (4) of electrical energy is located in a tubular casing ( 20, 21) and contains an energy storage (41) and a tubular receiving coil (40) connected to the electric energy storage (41), while the tubular receiving coil (40) has a longitudinal axis (42) and is configured to be placed in the charging position relative to flat transfer coil (30) of the charger (3) so that, in the charging position, the longitudinal axis (42) of the tubular receiving coil the ears (40) runs in a plane parallel to the flat transmitting coil (30), in the radial direction relative to the flat transmitting coil (30), and so that the tubular receiving coil (40) overlaps at least part (300, 301) of the flat transmitting coil (30) coils (30). 15. A wirelessly chargeable heating device according to claim 14, characterized in that the tubular casing comprises a waterproof part (20) in which the wirelessly chargeable source (4) of electrical energy is located. 16. A wirelessly chargeable heating device according to claim 14 or 15, characterized in that the tubular receiving coil (40) comprises a first part (400) of a receiving coil and a second part (401) of a receiving coil, which are spaced apart from each other in the direction of the longitudinal axis (42) of the take-up reel by a predetermined distance (43), wherein the first part (400) of the take-up reel has a first winding direction (402) and the second part (401) of the take-up reel has a second winding direction (403) opposite to the first direction (402) winding. 17. Chargeable wireless heating device according to any one of paragraphs. 14-16, characterized in that the tubular receiving coil (40; 400, 401) is wound around the tubular frame (440, 441, 442) and is made of at least one layer of magnetically conductive and electrically non-conductive sheet material and the chargeable source (4) electrical energy is located in the inner space of the tubular frame (440, 441, 442). 18. A wireless chargeable heating device according to claim 17, wherein the magnetically permeable and electrically non-conductive sheeting is ferrite. 19. A wirelessly chargeable heating device according to claim 15 and any one of claims. 17 or 18, characterized in that the roll bar contains three separate, separate portions (440, 441, 442) of the roll bar: the first end part (440) of the roll bar, the second end part (441) of the roll bar and the intermediate part (442) of the roll bar located between the first and second end portions (440, 441) of the roll bar, the first end portion (440) of the roll bar, the intermediate portion (442) of the roll bar and the second end portion (441) of the roll bar are located along the longitudinal axis (443) of the roll bar frame, and the first end part (440) of the tubular frame and the intermediate part (442) of the tubular frame, as well as the intermediate part (442) of the tubular frame and the second end part (441) of the tubular frame are separated from each other by an annular gap (444, 445) of a given width (450, 451) to prevent the penetration of magnetic flux into the inner space of the roll bar, and additionally the first part (400) of the receiving cat lugs having a first winding direction (402) is wound around the first end portion (440) of the tubular body, while a second take-up spool portion (401) having a second winding direction (403) opposite to the first winding direction (402) is wound around the second end part (401) of the tubular frame. 20. A wirelessly chargeable heating device according to claim 19, characterized in that each of the first end portion (440) of the tubular and the second end of the tubular portion (441) comprises two annular rims (446, 447) located at the ends corresponding to the first and the second end portions (440, 441) of the roll bar, and the recessed portion (448, 449) located between the two annular rims (446, 447), and wherein the first portion (400) of the take-up coil is located in the recessed portion (448) of the first end portion (440) of the roll bar, while the second portion (401) of the take-up spool is located in the recessed portion (449) of the second end portion (441) of the roll bar.

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